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What's graphics card fab (nm) and die size (mm2)?

post #1 of 12
7/2/12 at 5:43pm
Thread Starter 
Can someone show me the picture of fab (nm) and die size (nm2) for GPU? i tried to google to find the picture of gpu fab, but couldn't find it.

let look at GTX 500 series, all fab nm is 40, but their die size is different, and im interested to know what fab looks like and die size looks like...

p.s. sorry for asking a noob question, but im being curious, and i want to learn something new.
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post #2 of 12
7/2/12 at 5:54pm
Quote:
Originally Posted by contruable View Post

Can someone show me the picture of fab (nm) and die size (nm2) for GPU? i tried to google to find the picture of gpu fab, but couldn't find it.
let look at GTX 500 series, all fab nm is 40, but their die size is different, and im interested to know what fab looks like and die size looks like...
p.s. sorry for asking a noob question, but im being curious, and i want to learn something new.

 

40 nm (nanometers) is the size of each individual transistor.

 

The die size is something I don't know about yet.

It's like advanced alien technology! :)
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It's like advanced alien technology! :)
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post #3 of 12
7/2/12 at 6:06pm
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

40 nm (nanometers) is the size of each individual transistor.

The die size is something I don't know about yet.

yah...im really interested to know whats difference between nm (nanometers) and die size. if someone can provide pictures of nm and die size. i'd appreciated it.
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post #4 of 12
7/2/12 at 6:12pm
Quote:
Originally Posted by contruable View Post


yah...im really interested to know whats difference between nm (nanometers) and die size. if someone can provide pictures of nm and die size. i'd appreciated it.

 

40 nanometers is a microscopic size (it can only be seen under a microscope).  That's why billions of transistors can be put onto a processor.

 

I don't know where to find any pics.

It's like advanced alien technology! :)
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post #5 of 12
7/2/12 at 6:13pm
Process node (measured in nm) is the average half-pitch, or half the distance between identical features (transistors).

Die size is exactly that...it's the area of the physical die.

The smaller the manufacturing process, the more transistors that can be packed on a single die of a given size.

The smaller the die the more can be cut from a single wafer, and the less the part will cost.
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post #6 of 12
7/2/12 at 6:24pm

Oh man, I forgot about the term "wafer".

 

Here's a "Google" image search for "Intel CPU wafer" (because there are good pics of processor wafers)

 

https://startpage.com/do/search?cmd=process_search&language=english&enginecount=1&pl=&ff=&theme=&flag_ac=0&lui=english&cat=pics&query=intel+cpu+wafer

 

(Start Page uses Google, but it does not record your IP address)


Edited by TwoCables - 7/2/12 at 7:15pm
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It's like advanced alien technology! :)
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post #7 of 12
7/2/12 at 7:13pm
Quote:
Originally Posted by Blameless View Post

Process node (measured in nm) is the average half-pitch, or half the distance between identical features (transistors).
Die size is exactly that...it's the area of the physical die.
The smaller the manufacturing process, the more transistors that can be packed on a single die of a given size.
The smaller the die the more can be cut from a single wafer, and the less the part will cost.

This is what I remember, not the actual size of the transistor, they very.
What we're looking in NM is the distance(half) between 2 resistors.

I can't remember who put up a well informed article going into detail about all the nuances/intricacies/terminology of gpu manufacturing.
It was either Chuck at SA or Anand.
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post #8 of 12
7/2/12 at 7:39pm
Thread Starter 
isn't NM ( nanometers) is the green square, and die size is the black square in the center? look at the picture below to see what i'm talking/asking about.

http://images.anandtech.com/doci/3973/Die2.jpg
http://images.anandtech.com/doci/3909/GF106Die.jpg
Edited by contruable - 7/2/12 at 7:44pm
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post #9 of 12
7/2/12 at 7:43pm
Quote:
Originally Posted by contruable View Post

isn't NM ( nanometers) is the green square, and die size is the black square in the center? look at the picture below to see what i'm talking/asking about.
http://images.anandtech.com/doci/3973/Die2.jpg

The green layer is the substrate.
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post #10 of 12
7/2/12 at 7:45pm
Thread Starter 
Quote:
Originally Posted by grunion View Post

The green layer is the substrate.

but the black square in the center is die size, am i correct?
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